Earth’s spin is not as steady as it looks. As ice melts and groundwater is pumped from deep aquifers to the surface, the ...

Earth's Tilted Dance Through Space 44 degrees, or about half way between its extremes, and this angle is very slowly ...

Nearby planets can affect how one planet 'wobbles' on its spin axis, which contributes to seasons. Mark Garlick/Science Photo Library via Getty Images Spring, summer, fall and winter – the seasons on ...

The winter solstice varies by year, between Dec. 20 and Dec. 23. It marks the shortest day and longest night in the Northern ...

Meteorological winter starts on Dec. 1. Yet, winter doesn't officially begin until the winter solstice, which is on Dec. 21, ...

As winter approaches, a major winter storm has recently swept through parts of the Midwest and Central U.S., bringing heavy snowfall and creating travel chaos for millions returning home from ...

With the new year around the corner, December is filled with a robust lineup of celestial events to end the year with a ...

Spring, summer, fall and winter—the seasons on Earth change every few months, around the same time every year. It's easy to take this cycle for granted here on Earth, but not every planet has a ...

This article was originally featured on The Conversation. Spring, summer, fall and winter–the seasons on Earth change every few months, around the same time every year. It’s easy to take this cycle ...